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Recent Results on the Apsidal Motion Test in Eclipsing Binaries

Published online by Cambridge University Press:  07 August 2017

A. Gimenez  and
A. Claret
A. Gimenez
Affiliation:
Laboratorio de Astrofísica Espacial y Física Fundamental (INTA) Estación de Villafranca, Apartado 50727. 28080 Madrid, Spain
A. Claret
Affiliation:
Instituto de Astrofísica de Andalucía Apartado 3004. 18080 Granada, Spain

Abstract

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A selected sample of eclipsing binaries with well-defined apsidal motion rates and accurate absolute dimensions has been analysed and compared with most recent evolutionary models of the stellar internal structure. A reasonably good agreement has been achieved when models including convective-core overshooting, mass loss, and stellar rotation in the evolutionary code, are used. The systematic difference in log k2 reported by previous authors between observed and theoretically predicted values is no longer detected for stars with well-determined absolute dimensions, and a few anomalous cases can be easily explained in terms of the validity of the adopted assumptions.

Type
Oral and Contributed Papers
Information
Symposium - International Astronomical Union , Volume 151: Evolutionary Processes in Interacting Binary Stars , 1992 , pp. 277 - 280
Copyright
Copyright © Kluwer 1992 

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